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(ns clarktown.renderers.italic
(:require
[clojure.string :as string]))
(defn render
"Renders all occurring italic text as italic."
[block _ _]
(loop [block block
matches (-> (re-seq #"(\*{1,}?|\_{1,}?)(.*?)(\*{1,}?|\_{1,}?)" block)
distinct)]
(if (empty? matches)
block
(let [match (ffirst matches)
value (subs match 1 (- (count match) 1))
replacement (str "<em>" value "</em>")]
(recur (string/replace block match replacement)
(drop 1 matches))))))
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